package us.nchu.tomtiger.interceptor;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import us.nchu.tomtiger.utils.UserUtil;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * Created by XiongXuan on 2018/1/9.
 */
public class UserShowInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
        switch (httpServletRequest.getMethod()) {
            case "GET":
                // get方法不拦截
                return true;
            case "POST":
                return prePost(httpServletRequest, httpServletResponse);
        }
        return true;
    }

    private boolean prePost(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws IOException {
        if (!UserUtil.isLogin(httpServletRequest)) {
            // 跳转到登录页面
            UserUtil.goToLogin(httpServletRequest, httpServletResponse);
            return false;
        }

        String loginUserId = (String) httpServletRequest.getSession().getAttribute("userId");
        String modifyUserId = httpServletRequest.getParameter("phoneNumber");

        // 判断登录的id和要修改的id是否一样
        return loginUserId.equals(modifyUserId);
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}
